fix(vhdutil): coalesce returns a size in bytes now

Signed-off-by: Ronan Abhamon <ronan.abhamon@vates.fr>

Author: Wescoeur

drivers/cleanup.py

@@ -897,8 +897,7 @@ def _reportCoalesceError(vdi, ce):
             xapi.message.create(msg_name, "3", "SR", vdi.sr.uuid, msg_body)
 
     def coalesce(self) -> int:
-        # size is returned in sectors
-        return self.cowutil.coalesce(self.path) * 512
+        return self.cowutil.coalesce(self.path)
 
     @staticmethod
     def _doCoalesceCowImage(vdi):
@@ -1634,7 +1633,7 @@ def pause(self, failfast=False) -> None:
     def coalesce(self) -> int:
         # Note: We raise `SMException` here to skip the current coalesce in case of failure.
         # Using another exception we can't execute the next coalesce calls.
-        return self.sr._vhdutil.force_coalesce(self.path) * 512
+        return self.sr._vhdutil.force_coalesce(self.path)
 
     @override
     def getParent(self) -> str:

drivers/vhdutil.py

@@ -43,6 +43,8 @@
 
 VHD_FOOTER_SIZE: Final = 512
 
+VHD_SECTOR_SIZE: Final = 512
+
 MAX_VHD_CHAIN_LENGTH: Final = 30
 
 VHD_UTIL: Final = "/usr/bin/vhd-util"
@@ -329,12 +331,12 @@ def getBlockBitmap(self, path: str) -> bytes:
     @override
     def coalesce(self, path: str) -> int:
         """
-        Coalesce the VHD, on success it returns the number of sectors coalesced.
+        Coalesce the VHD, on success it returns the number of bytes coalesced.
         """
         text = cast(str, self._ioretry([VHD_UTIL, "coalesce", OPT_LOG_ERR, "-n", path]))
         match = re.match(r"^Coalesced (\d+) sectors", text)
         if match:
-            return int(match.group(1))
+            return int(match.group(1)) * VHD_SECTOR_SIZE
         return 0
 
     @override

tests/test_vhdutil.py

@@ -366,7 +366,7 @@ def test_function(args, inp):
         context.add_executable(VHD_UTIL, test_function)
 
         # Act/Assert
-        self.assertEqual(25, vhdutil.coalesce(TEST_VHD_PATH))
+        self.assertEqual(25 * 512, vhdutil.coalesce(TEST_VHD_PATH))
 
     @testlib.with_context
     def test_get_vhd_info_allocated_size(self, context):